US1390254A - Machine for cutting embroidery - Google Patents

Machine for cutting embroidery Download PDF

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Publication number
US1390254A
US1390254A US417435A US41743520A US1390254A US 1390254 A US1390254 A US 1390254A US 417435 A US417435 A US 417435A US 41743520 A US41743520 A US 41743520A US 1390254 A US1390254 A US 1390254A
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United States
Prior art keywords
cutting
machine
embroidery
disk
roller
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US417435A
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English (en)
Inventor
Tscherne Alois
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/16—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials specially adapted for cutting lace or embroidery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/081—With randomly actuated stopping means
    • Y10T83/099—Manually operated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/727—With means to guide moving work

Definitions

  • the present invention has for its object certain new and useful improvements in machines for cutting embroidery along the embroidery edge.
  • the primary object of the invention is to provide an embroidery cutting machine with a cutter rotating vertically and same being fulcrumed to a bracket secured tightly to the frame of the machine.
  • a cutter rotating vertically and same being fulcrumed to a bracket secured tightly to the frame of the machine.
  • a further object of the invention is the provision of pairs of rollers feeding the embroidered as well as the waste portion of the fabric and of which at least the lower one of that pair of rollers which is designed to take up the waste portion can, upon arising of great tension, swing out, thus releasing the tension on said portion and, by means of connecting rods, acting on guide rolls at the same time and exerting influence on said guide rolls, placed in front of t 1e cutter,
  • a further object of the invention is to provide a very sensitive friction-clutch as a driving means for the feedingrollers and still a further object is'to provide means for instantaneous starting and stopping the machine.
  • Figure 1 is a fragmentary front elevation of the machine;
  • Fig. 2 is a top view thereof
  • Fig. 2 represents diagram of the cutting operation;
  • Fig. 3 is aside elevation of.
  • Figs. 4%, 5, 6,7 and 8 rep resent detail parts on a enlarged scale;
  • Fig. 1 is a fragmentary front elevation of the machine;
  • Fig. 2 is a top view thereof
  • Fig. 2 represents diagram of the cutting operation;
  • Fig. 3 is aside elevation of.
  • Figs. 4%, 5, 6,7 and 8 rep resent detail parts on a enlarged scale;
  • FIG. 10 is a side elevation
  • Figs; 11 and 12 respectively are front and side views of the drive disconnecting mechanism
  • Fig. 13 is a side view of a plainrim disk knife, of which Fig. 14 is an edge view, and Figs. 15 and 16 respectively show side and edge views of a modification of the disk knife with mutilated periphery.
  • a support bracket 1 to which in turn is rigidly secured the bearing 2, in which a disk knife 3 is vertically rotatingly journaled.
  • This circular knife is driven from belt 6 over the pulley 5 and the train of gears 7, 8, 9 and it may consist of a single disk member3 as shown in Figs. 13 and 14:, or it may be composed of two disk members 3, 8 arranged in parallel juxtaposition 16), the respective outer faces being slightly convex, and the inner slightly concave, and the two faces of each cutting member converging at the periphery at an acute angle to form a sharp cutting edge.
  • Each. disk is peripherally providedhvith alternate proje-ctions and depressions 3, (Fig. 15).
  • the two cuttingunembers and 3 are secured on their shaft with their convex faces facing each other insuch a manner that the extensions 3' of the one member are in horizontal alinement with or overlappingly cover the depressions 3 of the other member.
  • a support 4 carrying the stop or gate members 10 and 11 which form between them the intake-slit or gate for the embroidery.
  • the gate member 10 can be adjusted by means of the thumb screw 12', while the gate member. 11 is rigidly secured to the support t.
  • This latter gate member is provided with a nose 13 (Figs. 4.- and 6) which serves to prevent the fabric from forming folds on introducing the embroidery into the machine, and for facilitating the introduction of thefabric between the gate stops when commencing with'the cutting.
  • a guide roll 16 which for the purpose of readily feeding-in the fabric can be led over and is preferably dented or roughened on its bearing surface.
  • This roll 16 normally is held in contact with a second gu de roll 17 by means of the spring 16' (Flg. 1) but it can be lifted therefrom by swinging the rock lever 14 upwardly, for varying the operative pressure between the two rolls.
  • the two guide rolls 16 and 17 serve to feed the embroidery to the edge tool.
  • the roll 17 is loosely journaled on a shaft 18 (Fig.
  • the supports 28, 28 (Figs. 1, 2, 3 and 7) in which are tiltingly supported the bearings 30, 30 for the rollers 29, 29 which are driven from the belt 31, the rollers 32, 33, 33, 34, 34 and gears 35, 35 and 36, 36 respectively.
  • a bearing 43 for supporting the carriers 44, 44' for the upper rollers 45, 45 of the respective roller pairs, which roller carriers can be laid over by means of a hand lever 47 cooperating with a cam segment 46.
  • Leaf springs 43 (Figs. 1 and 2) normally press the rollers 45, 45 against the rollers 29, 29, stops 48 cooperating with knobs 49 (Fig. 1) guarding against excess pressure.
  • apreferably elastice guide member 50 which serves to lift the fabric off the cutting tool and simultaneously gives it a slight twist.
  • the guide member can be adjusted relative to the cutting tool.
  • the guide member 50 could also be connected to the mechanism actuating the guide roll 17 so that the member 50 would then be operated together with the roll 17 on operation of the roller 29.
  • the machine is driven from an electromotor E (Fig. 9) mounted on a support 52 secured to the machine frame S.
  • the electromotor drives a pulley 53 keyed to the shaft 54, to which latter are secured the grooved pulleys 55 and 56 (Fig. 11), the rollers 55 serving to drive the guide roll 17 by the rope 23 and the roller 56 driving the cutting tool 3 by the rope 6.
  • the shaft 54 further supports a worm 57, meshing with a worm gear 59 keyed on the shaft 58.
  • On this latter is further secured a friction disk 60 which coperates with a second friction disk 61.
  • a pulley 62 which by means of the rope 31 and pulley 32 drives the shaft 63 3) from which in turn the feed rollers are driven.
  • the friction disk 61 is j ournaled in the one arm 64 of a bell-crank-lever 64, 67, fulcrumed by its sleeve 65 on a pivot-pin 66 and whose other arm 67 contacts with the shorter arm 68 of a' double armed lever, pivoted at 68', to the longer arm 69 of which one end of a draw-spring 70 is secured, whose other end is connected to a pin 71 rigidly secured to the machine frame,
  • the friction disk 60 can be axially displaced upon its shaft58, so that the rotary speed of the pulley can be varied.
  • This axial displacement of disk 60 is caused by a mechanism, comprising a hand lever 77 secured to the upper end of the vertical rod 76, to the lower end of which is secured the lever arm 73,v whose upstanding free end cooperates with the grooved sleeve 72 fixed to the disk 60.
  • the lever rod 7 6 is guided in frame members 74 and 75.
  • the motor-driven pulley 53 is in the form of a loose couplinghalf which, by means of a spring 78, is pressed against the complementary disk 79 fixed on the shaft 54.
  • a coupling lever 81 secured to the coupling member 53 and carrying a roller 82 adapted to engage in depressions 83, 83 provided in the periphery of a disk 84 journaled in the machine frame. These depressions alternate in depth, so that the roller 82, depending on the momentary position of the disk 84 engages in them to a larger or lesser degree.
  • a ratchet wheel 85 is connected with the recessed disk 84 and can be actuated by a pawl 88 which is pivotally secured to the arm 86 of a bell-crank-lever and is influenced by the draw-spring 87.
  • the other arm 89 of this bell-crankdever is in the form of a pedal 90 (Fig. 9) the bellcrank normally being retained by a counterbalancing weight 91 in the inoperative position.
  • a stop 92 limits the operative movement of this pedal coupler.
  • the ratchet wheel 85 will be advanced by its pawl 88, so that by way of example, the roller may drop into a deep recess 83 of disk 84, when the coupling lever 81 will let in the coupling members 53 and 79, while upon the pedal being again actuated, the roller will engage in the succeeding shallow depression 83', which prevents the coupling members from couplingly coacting. Since the disk 84 needs only be rotated to a relatively slight degree to cause the roller to change from a deep recess to a shallow one or vice versa, it is clear that this arrangement allows of practically instantaneous starting or stopplng of the machine.
  • the operation of the machine is the following: The fabric to be cut is conducted in between the guide rolls 16, 17 and then through between the gate members 10, 11,
  • the embroidery opposes varying resistances to the cutting operation.
  • the resistance of the ascending edge 7 of a festoon F is relatively strong, while that of the descending edge 7 is rather weak.
  • the cut-off waste portion E which causes the roller 29 to swing around in the direction of the arrow (Fig. 7)
  • the roll 16 is lifted ofi the roll 17 and the rotation of the latter is slowed down or suspended by the operation of the parts 39, 40, 41, 42, so that also the pull of the guide rolls on the fabric is correspondingly reduced or stopped entirely.
  • the rotation of the guide roll 1'? can also be influenced by the spring 1.9 in. accordance with the thickness of the fabric, this spring being tensioned for heavy fabrics and eased as desired for light goods.
  • Such a cutting machine has the advantage that by the described feeding mechanism the embroidery is carried up to the knife automatically and in such a manner, that the cut is executed closely along the cutting edge, so as to produce good and even work.
  • the machine further, can be adjusted readily even during full running for varying thicknesses of fabric and the instantaneous starting and stopping is very important for the machine, especially when handling imperfect goods.
  • a machine as claimed in claim 1 characterized by the provision of a double-disk knife as cutting tool.
  • a machin as claimed in claim 3 further characterized by having the said cutting disks peripherally notched at equal intervals.
  • a circular cutter comprising two circular disk members having peripheral notches and arranged in parallel juxtaposition on said shaft, said disks being slightly concavo-convex with the concave faces in facing opposition, and the convex faces being peripherally attenuated to form sharp cutting edge, and said two disks being relatively so disposed that their notches are in relative staggered relation, each notch of the one disk facing an intervening portion between two notches of the other disk.
  • the embroidery cutting machine as claimed in claim 1 characterized in that the rotation of the guide roll 1'7 is controlled by a spring-controlled thrust disk 20 and the upper guide roll 16 is ournaled on a lever 14: whose arm 14; is adapted to l e actuated by the swinging roller of the waste fabric handling roller pair.
  • the guide member 50 is elastic and can be adjusted relative to the cutting tool.
  • An embroidery cutting machine as claimed in claim 10 characterized by the driving disk of said friction drive being journaled at the upper end of a bell crank, and the other free end of said bell crank cooperating with the shorter arm of a doublearmed spring-influenced lever.
  • An embroidery cutting machine as claimed in claim 1 characterized by a foot operated starting and stopping lever, a coupling lever operated by said foot lever and adapted to control the main drive coupling, aroller journaled in said coupling lever, a rotatable ratchet wheel, a pawl adapted to cooperate with said ratchet wheel and fulcrumed on said foot lever, and disk having peripheral notches of alternately varying extent,- said disk being rigidly connected to said ratchet wheel and adapted to peripherally e operate with said roller.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US417435A 1920-01-21 1920-10-16 Machine for cutting embroidery Expired - Lifetime US1390254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH93791T 1920-01-21

Publications (1)

Publication Number Publication Date
US1390254A true US1390254A (en) 1921-09-06

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ID=4351365

Family Applications (1)

Application Number Title Priority Date Filing Date
US417435A Expired - Lifetime US1390254A (en) 1920-01-21 1920-10-16 Machine for cutting embroidery

Country Status (4)

Country Link
US (1) US1390254A (de)
CH (1) CH93791A (de)
DE (1) DE334898C (de)
GB (1) GB153910A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959079A (en) * 1956-08-22 1960-11-08 Tscherne Alois Embroidery cutting machine with means for varying the tension on the web
CN107254771A (zh) * 2017-06-22 2017-10-17 合肥特丽洁卫生材料有限公司 一种网格状线筋加工分切装置用切割刀具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992579A (en) * 1956-12-19 1961-07-18 Kleger Ferdinand Machines for cutting out embroideries

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959079A (en) * 1956-08-22 1960-11-08 Tscherne Alois Embroidery cutting machine with means for varying the tension on the web
CN107254771A (zh) * 2017-06-22 2017-10-17 合肥特丽洁卫生材料有限公司 一种网格状线筋加工分切装置用切割刀具

Also Published As

Publication number Publication date
DE334898C (de) 1921-03-22
CH93791A (de) 1922-03-16
GB153910A (en) 1922-02-02

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